Anil Ahlawat Solutions for Chapter: Electric Current and its Effects, Exercise 1: EXERCISES

In which of the following circuit will the bulb glow?

In which circuit the bulbs will glow brightly?

Which of the following diagrams represents a short circuit?

Copper wires are used as connecting wires because

Three bulbs $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$ are connected as shown in figure. The bulbs $\mathrm{B}$ and $\mathrm{C}$ are identical. If the bulb $\mathrm{C}$ is fused, then

Consider the following statements and select the correct option which correctly identifies true $\left(\mathrm{T}\right)$ and false $\left(\mathrm{F}\right)$.
(i) Iron loses its magnetism easily.
(ii) Steel is a hard magnetic material.
(iii) Soft iron is used to make permanent magnet.
(iv) Steel is used to make electromagnet.

Which of the following circuit diagram represents the given torch?

The given options show four electromagnets. Which electromagnet is stronger than others?